摘要
The Hugoniot equation-of-state(EOS)of porous iron with an average initial density of 6.904g/cm^(3) has been measured in the pressure range from 90 to 160GPa,and a good straight fitting D=2.997+1.603u has accordingly been obtained,where D is the shock wave velocity and u the particle velocity,both in units of km/s.Combining this with the Hugoniot EOS of non-porous iron,the Grüneisen EOS and the Rankine-Hugoniot energy conservation relation,and taking the possible solid-liquid transition correction,we have calculated the Grüneisen parameterγof iron and obtained the resultγ0ρ0=γρ=const,withγ0=1.945 andρ0=7.856g/cm^(3),ρbeing the density.
作者
LI Xi-Jun
ZHOU Xian-Ming
WANG Fan-Hou
JING Fu-Qian
李西军;周显明;王藩侯;经福谦(Institute of Electronic Engineering,China Academy of Engineering Physics,P.O.Box 919-501,Mianyang 621900;National Laboratory of Shock Wave Physics and Detonation Physics,Institute of Fluid Physics,China Academy of Engineering Physics,P.O.Box 919-111,Mianyang,621900;Graduate School of China Academy of Engineering Physics,P.O.Box 2101,Beijing 100088;Institute of High Temperature and High Pressure Physics,Southwest Jiaotong University,Chengdu 610031)
基金
Supported by the Science and Technology Foundation of China Academy of Engineering Physics under contract No.990110.
